The Research on the Harmonious Development in Ecology and Industry between Beijing and Zhangjiakou
研究北京与张家口在生态环境和产业发展上的紧密联系，指出生态脆弱区低技术产业和贫困人口抵消了生态建设效果，强调两地合作发展新产业、推进城镇化以改善环境。
There are tightly connection between Beijing and Zhangjiakou in ecological environment. The ecological construction in the area has just restrained the environment degeneration in some extent .Many lower-technology industries and poor population are in the ecological frangible area, which offset the effect in ecology construction, are the basic seasons of environment degeneration. So its most important that the cooperation between Beijing and Zhangjiakou in ecology construction and industry development, which helps Zhangjiakou to develop new industries, to put forward urbanization, and move the population to town.